Discussing the UniBoss touch sensor film sample pictures posted by SA contributor Seth Shaw in his bearish column on UniPixel (UNXL-22.9%), a source tells Barron's Tiernan Ray the sample unit is 18 months old and broken, and that UniPixel will show off a demo unit that "will work just fine" at an industry conference next week. The source also speculates UniPixel shares saw naked short selling today, given 9M shares were traded (more than an estimated float of 6M-7M). Shares closed down 59% from their May 16 close of $36.74.